psychro-, psychr-

(Greek: cold)

psychrotherapy (s) (noun) (no pl)
The treatment of an ailment with the application of cold: In medical school, Jeff learned that there were some illnesses or disorders that needed a medical cure called psychrotherapy that used a cold coating or covering.
psychrotroph (s) (noun), psychrotrophs (pl)
In biology, a form of life that can adjust to cold: A psychrotroph, like a microorganism, can grow at low temperatures, but grows optimally between 15 degrees and 20 degrees Celsius.

Cross references of word families that are related directly or indirectly to "winter, freezing, frost, and/or cold": algid- (cold, chilly); cheimo-, chimo- (winter, cold); crymo-, krymo- (cold, chill, frost); cryo-, kryo-; (cold, freezing); frigo-, frig- (cold, frost); gel-, gelati- (freeze, frost, congeal); hiber- (winter, wintry); pago- (cold, freezing); rhigo- (cold, frost; shiver).